Count uint8

Count the number of bytes equal to 127 in a binary stream as fast as possible.

Input: 250 000 000 uint8 values in binary on STDIN.

Output: The count of elements equal to 127, printed as a decimal string.

Restrictions:30s512Mb 1 Score Packages

Feel free to create an issue if you need an extra library from the standard Ubuntu repository.

Name	Version	Description
libc6-dev	2.39-0ubuntu8.7	GNU C Library: Development Libraries and Header Files Contains the symlinks, headers, and object files needed to compile and link programs which use the standard C library.
libclang-common-14-dev	1:14.0.6-19build4	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-15-dev	1:15.0.7-14build3	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-16-dev	1:16.0.6-23ubuntu4	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-17-dev	1:17.0.6-9ubuntu1	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-18-dev	1:18.1.3-1ubuntu1	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-19-dev	1:19.1.1-1ubuntu1~24.04.2	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-20-dev	1:20.1.2-0ubuntu1~24.04.2	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libcrypt-dev	1:4.4.36-4build1	libcrypt development files This package contains the files needed for developing applications that use libcrypt.
libgcc-10-dev	10.5.0-4ubuntu2.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-11-dev	11.5.0-1ubuntu1~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-12-dev	12.4.0-2ubuntu1~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-13-dev	13.3.0-6ubuntu2~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-14-dev	14.2.0-4ubuntu2~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libobjc-13-dev	13.3.0-6ubuntu2~24.04.1	Runtime library for GNU Objective-C applications (development files) This package contains the headers and static library files needed to build GNU ObjC applications.
libssl-dev	3.0.13-0ubuntu3.9	Secure Sockets Layer toolkit - development files This package is part of the OpenSSL project's implementation of the SSL and TLS cryptographic protocols for secure communication over the Internet. . It contains development libraries, header files, and manpages for libssl and libcrypto.
libstdc++-10-dev	10.5.0-4ubuntu2.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-11-dev	11.5.0-1ubuntu1~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-12-dev	12.4.0-2ubuntu1~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-13-dev	13.3.0-6ubuntu2~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-14-dev	14.2.0-4ubuntu2~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libtbb-dev	2021.11.0-2ubuntu2	parallelism library for C++ - development files TBB is a library that helps you leverage multi-core processor performance without having to be a threading expert. It represents a higher-level, task-based parallelism that abstracts platform details and threading mechanism for performance and scalability. . (Note: if you are a user of the i386 architecture, i.e., 32-bit Intel or compatible hardware, this package only supports Pentium4-compatible and higher processors.) . This package includes the TBB development files.

Back to listJun 13, 2021 11:20

Dmitry Dolgopolov

Score: 4,973

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jun 13, 2021 11:20	4,958	40,570,959	14,873,000	991,000	2,531,328
2	Jun 13, 2021 11:31	4,959	38,733,537	14,877,000	991,000	2,531,328
3	Jun 13, 2021 10:58	4,960	30,104,603	13,888,000	1,984,000	2,449,408
4	Jun 13, 2021 11:31	4,961	38,846,342	13,892,000	1,984,000	2,441,216
5	Jun 13, 2021 11:31	4,961	34,789,810	14,884,000	992,000	2,531,328
6	Jun 13, 2021 11:31	4,961	43,252,425	13,892,000	1,984,000	2,531,328
7	Jun 13, 2021 10:58	4,962	30,381,881	13,894,000	1,984,000	2,531,328
8	Jun 13, 2021 11:20	4,963	34,461,984	13,895,000	1,985,000	2,269,184
9	Jun 13, 2021 10:58	4,963	32,066,169	13,898,000	1,985,000	2,527,232
10	Jun 13, 2021 10:58	4,963	37,239,386	13,897,000	1,985,000	2,445,312
11	Jun 13, 2021 10:58	4,963	34,054,790	13,895,000	1,985,000	2,531,328
12	Jun 13, 2021 11:20	4,963	33,497,753	13,897,000	1,985,000	2,445,312
13	Jun 13, 2021 11:31	4,963	45,963,219	13,897,000	1,985,000	2,531,328
14	Jun 13, 2021 11:31	4,963	36,713,351	13,898,000	1,985,000	2,531,328
15	Jun 13, 2021 11:20	4,963	33,461,620	13,898,000	1,985,000	2,531,328
16	Jun 13, 2021 10:58	4,964	32,802,722	13,900,000	1,985,000	2,269,184
17	Jun 13, 2021 11:20	4,966	32,077,284	13,905,000	1,986,000	2,269,184
18	Jun 13, 2021 10:58	4,969	41,375,875	13,915,000	1,987,000	2,453,504
19	Jun 13, 2021 11:20	4,973	39,652,433	14,920,000	994,000	2,441,216
20	Jun 13, 2021 11:31	4,973	31,121,298	14,853,000	1,060,000	2,453,504
21	Jun 13, 2021 10:58	4,978	31,474,145	14,867,000	1,061,000	2,453,504
22	Jun 13, 2021 11:20	4,979	30,854,810	13,941,000	1,991,000	2,527,232
23	Jun 13, 2021 11:31	4,979	35,479,631	13,942,000	1,991,000	2,449,408
24	Jun 13, 2021 10:58	4,981	34,400,843	13,947,000	1,992,000	2,453,504
25	Jun 13, 2021 11:31	4,981	37,757,070	13,947,000	1,992,000	2,437,120
26	Jun 13, 2021 11:20	4,983	36,768,399	13,952,000	1,993,000	2,449,408
27	Jun 13, 2021 11:20	4,988	28,308,211	13,966,000	1,995,000	2,449,408
28	Jun 13, 2021 10:58	5,183	83,175,207	16,585,891	0	2,199,552
29	Jun 13, 2021 11:20	5,185	60,445,312	16,591,057	0	2,207,744
30	Jun 13, 2021 10:58	5,187	73,871,234	16,598,835	0	2,203,648
31	Jun 13, 2021 11:20	5,189	73,967,589	16,604,693	0	2,207,744
32	Jun 13, 2021 11:31	5,203	82,730,958	16,648,940	0	2,203,648
33	Jun 13, 2021 11:31	5,213	103,580,919	16,682,367	0	2,203,648
34	Jun 13, 2021 11:20	5,216	81,989,427	16,691,752	0	2,207,744
35	Jun 13, 2021 11:31	5,218	86,686,224	16,697,727	0	2,207,744
36	Jun 13, 2021 10:58	5,239	73,788,999	16,766,277	0	2,195,456

Model	Intel(R) Xeon(R) CPU E3-1271 v3 @ 3.60GHz
Cores	1